Shamrock Trio – Hold & Respin taps into the familiar charm of Irish-themed slots, complete with rolling green hills, a rainbow stretching across the sky, and mushroom houses tucked into the landscape. It’s a setup that’s instantly recognisable, but there’s a little more going on here than just clichés.
The game plays out on a 5×3 grid with 20 fixed paylines, but the real focus is on the clover coins — green, red, and blue — which are key to unlocking the action and give the game its name.
The reels are stacked with a mix of classic and themed symbols. The lower-value spots are filled by the usual card ranks from Jack to Ace. Things get more decorative with the premium symbols, which stick to the leprechaun theme — expect to see harps, boots, horseshoes, and top hats, with the top hat leading the pack in payout value.
There’s also a leprechaun wild that pulls double duty. It can help complete winning lines and also pays out on its own, matching the top hat for value when it lands in a full combo.
Then come the clover coins: green, red, and blue. These special symbols don’t just spin by for show. Each one triggers its own feature, and together they’re at the heart of what this slot is built around.
Symbol | 3 symbols | 4 symbols | 5 symbols |
Jack | 0.1x | 0.25x | 1x |
Queen | 0.1x | 0.25x | 1x |
King | 0.25x | 1x | 2x |
Ace | 0.25x | 1x | 2x |
Harp | 0.75x | 1.5x | 3x |
Boot | 0.75x | 1.5x | 3x |
Horseshoe | 1x | 2x | 6x |
Top hat | 2x | 4x | 20x |
Leprechaun Wild | 2x | 4x | 20x |
The core of Shamrock Trio – Hold & Respin revolves around the Hold and Respin feature. This starts with 3 or 4 respins, depending on the triggering symbol. Every time a coin lands, it sticks to the screen, and the respin counter resets to its initial value. The feature ends when there are no respins left or all positions are filled with coin symbols. If all positions on the reels are filled with coins, the MEGA SHAMROCK prize is awarded, though the multiplier does not apply to this prize.
When the green clover coin lands, it triggers the Multiplier feature. A wheel appears with multipliers ranging from 2x to 10x, and a spin determines the multiplier. The total coins won during this feature are then multiplied by the chosen multiplier value.
The red clover coin triggers the Double feature, which gives you two separate games to play. Each game has 3 respins, and they play independently.
Landing a blue clover coin activates the Extra Spins feature. This gives 4 respins, allowing for more chances to land coins. Like the other features, coins that land will stick, and the respin counter resets each time a coin is collected.
If both red and blue clover coins land, the Double & Extra Spins feature is triggered. Two new games begin, each with 4 respins.
The Multiplier & Extra Spins feature is activated when green and blue clover coins land. A wheel sets a multiplier (ranging from 2x to 10x), and 4 respins are awarded.
Landing both green and red clover coins triggers the Multiplier & Double feature. A wheel spin sets a multiplier between 2x and 10x, and two new games are opened.
When all three clover coins land, the Multiplier, Double & Extra Spins feature kicks in. A wheel sets the multiplier value (2x to 10x), and two new games open with 4 respins each.
For those who want to guarantee a bonus round, the Buy Bonus feature is available in the base game. For 80× the total cash bet, you can jump straight into any one of the 7 features.
If you enjoy the Hold and Respin action of Shamrock Trio, check out Age of the Gods: King of Olympus Fire Blaze Xtreme. For more cheerful and fun slots, try Three Crazy Piggies or Aztec Fruits.